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  2. Binary number - Wikipedia

    en.wikipedia.org/wiki/Binary_number

    A binary number is a ... along with algorithms for performing basic arithmetic operations such as addition, subtraction, multiplication, and division using binary ...

  3. Binary multiplier - Wikipedia

    en.wikipedia.org/wiki/Binary_multiplier

    Therefore, the multiplication of two binary numbers comes down to calculating partial products (which are 0 or the first number), shifting them left, and then adding them together (a binary addition, of course): 1011 (this is binary for decimal 11) × 1110 (this is binary for decimal 14) ===== 0000 (this is 1011 × 0) 1011 (this is 1011 × 1 ...

  4. Chisanbop - Wikipedia

    en.wikipedia.org/wiki/Chisanbop

    With the chisanbop method it is possible to represent all numbers from 0 to 99 with the hands, rather than the usual 0 to 10, and to perform the addition, subtraction, multiplication and division of numbers. [4] The system has been described as being easier to use than a physical abacus for students with visual impairments. [5]

  5. Undecimal - Wikipedia

    en.wikipedia.org/wiki/Undecimal

    Undecimal (also known as unodecimal, undenary, and the base 11 numeral system) is a positional numeral system that uses eleven as its base.While no known society counts by elevens, two are purported to have done so: the Māori (one of the two Polynesian peoples of New Zealand) and the Pañgwa (a Bantu-speaking people of Tanzania).

  6. Booth's multiplication algorithm - Wikipedia

    en.wikipedia.org/wiki/Booth's_multiplication...

    Booth's multiplication algorithm is a multiplication algorithm that multiplies two signed binary numbers in two's complement notation. The algorithm was invented by Andrew Donald Booth in 1950 while doing research on crystallography at Birkbeck College in Bloomsbury, London. [1] Booth's algorithm is of interest in the study of computer ...

  7. Bitwise operation - Wikipedia

    en.wikipedia.org/wiki/Bitwise_operation

    In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual bits.It is a fast and simple action, basic to the higher-level arithmetic operations and directly supported by the processor.

  8. Unary numeral system - Wikipedia

    en.wikipedia.org/wiki/Unary_numeral_system

    Addition and subtraction are particularly simple in the unary system, as they involve little more than string concatenation. [9] The Hamming weight or population count operation that counts the number of nonzero bits in a sequence of binary values may also be interpreted as a conversion from unary to binary numbers. [10]

  9. Carry-save adder - Wikipedia

    en.wikipedia.org/wiki/Carry-save_adder

    A carry-save adder [1] [2] [nb 1] is a type of digital adder, used to efficiently compute the sum of three or more binary numbers. It differs from other digital adders in that it outputs two (or more) numbers, and the answer of the original summation can be achieved by adding these outputs together.